6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-06-13 22:24:07 +00:00
Code Issues Projects Releases Wiki Activity

[Dwarf] avoid emitting multiple AT_const_value for static memebers.

Browse Source 
Testing case is reduced from MultiSource/BenchMarks/Prolangs-C++/deriv1.

rdar://problem/13071590


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174235 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Manman Ren
2013-02-01 23:54:37 +00:00
parent dbc86b98f2
commit 945e828003
2 changed files with 72 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
View File

@ -1286,6 +1286,7 @@ void CompileUnit::createGlobalVariableDIE(const MDNode *N) {
// If this is a static data member definition, some attributes belong
// to the declaration DIE.
DIE *VariableDIE = NULL;
bool IsStaticMember = false;
DIDerivedType SDMDecl = GV.getStaticDataMemberDeclaration();
if (SDMDecl.Verify()) {
assert(SDMDecl.isStaticMember() && "Expected static member decl");
@ -1295,6 +1296,7 @@ void CompileUnit::createGlobalVariableDIE(const MDNode *N) {
getOrCreateContextDIE(SDMDecl.getContext());
VariableDIE = getDIE(SDMDecl);
assert(VariableDIE && "Static member decl has no context?");
IsStaticMember = true;
}
// If this is not a static data member definition, create the variable
@ -1348,9 +1350,13 @@ void CompileUnit::createGlobalVariableDIE(const MDNode *N) {
addString(VariableDIE, dwarf::DW_AT_MIPS_linkage_name,
getRealLinkageName(LinkageName));
} else if (const ConstantInt *CI =
dyn_cast_or_null<ConstantInt>(GV.getConstant()))
addConstantValue(VariableDIE, CI, GTy.isUnsignedDIType());
else if (const ConstantExpr *CE = getMergedGlobalExpr(N->getOperand(11))) {
dyn_cast_or_null<ConstantInt>(GV.getConstant())) {
// AT_const_value was added when the static memeber was created. To avoid
// emitting AT_const_value multiple times, we only add AT_const_value when
// it is not a static member.
if (!IsStaticMember)
addConstantValue(VariableDIE, CI, GTy.isUnsignedDIType());
} else if (const ConstantExpr *CE = getMergedGlobalExpr(N->getOperand(11))) {
addToAccelTable = true;
// GV is a merged global.
DIEBlock *Block = new (DIEValueAllocator) DIEBlock();